The determination of serum BUN currently is the most widely used screening test for the evaluation of kidney function. The test is frequently requested along with the serum creatinine test since simultaneous determination of these 2 compounds appears to aid in the differential diagnosis of prerenal, renal and postrenal hyperuremia.
Kale is higher in fiber than lettuce. Leafy green vegetables like kale and lettuce are both rich in fiber and low in calories.Kale comes in deep green or purple colors. Lettuce varies in colors and varieties, including red and green romaine, iceberg and red leaf.iber Content. Kale is slightly higher in fiber content than lettuce. The high fiber content helps stabilize the leafy veggie during cooking. Insoluble fiber from kale and lettuce sweeps through your gut like a broom, pushing out waste.
Kale is a member of the cabbage family. The leafy green stalks of the kale plant can be used for soups and salads, and in place of spinach. If you want to use it like you would frozen or sauteed sautÃ©ed, spinach you can boil kale in. batcheseep at a simmer for 15 to 20 minutes. 1  If you want to blanch kale for use in salads, keep the kale submerged in boiling water for 2 to 4 minutes. 2  It should turn a bright green color.